• Life and Agrochemicals
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• s.268
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• pp.64-64
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• 2011

• KOREAN JOURNAL OF PACKAGING SCIENCE & TECHNOLOGY
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• v.18 no.1_2
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• pp.15-20
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• 2012

Economic feasibility was analyzed for packaging of chives, which are currently distributed without packaging. The additional revenue from packaging of chives was estimated to be 3,471 million won in summer season (May to September in Korea) and 3,083 million won in winter season (October to April). But, the additional cost due to packaging was estimated to be 1,926 million won in summer season and 1,254 million won in Winter season. Thus, net profits were estimated to be 1,545 million won and 1,829 million won respectively. In terms of unit (1.4 kg), the net profit with packaged distribution estimated to be 247.9 won/unit in summer season and 226.5 won/unit in winter season, respectively. therefore, total profit through packaging was estimated to be 2,799 million won per year.

• Journal of Animal Science and Technology
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• v.54 no.4
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• pp.275-282
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• 2012

The data including milk yields, fat and protein percent for 628,395 heads collected by National Agricultural Cooperative Federation, 15 type traits and final score for 62,262 heads collected by Korea Animal Improvement Association, which were born in 1998 to 2004, and net profits calculated from milk price and raising expenses of individuals were used to estimate genetic parameters. The highest positive genetic correlation, 0.81, was shown between body depth (BD) and loin strength (SR). Genetic correlations between body depth (BD) and udder depth (UD), front teat placement (TP) and front teat length (TL) were -0.23, which were lowest among the linear type traits. Furthermore, medium level of negative genetic correlations were shown the milk yield with milk contents rate traits. Mostly low level of positive genetic correlations were shown between the milk traits and linear score traits except milk yield and stature. Most of the genetic correlations of between the linear score traits and net profit were low level of positive or negative genetic correlations. Among the genetic correlations, body depth (BD), angularity (DF) and rear attachment width (UW), and final score (FS) with net profit were high as 0.17, 0.17, 0.18 and 0.18, respectively. Finally all of the genetic correlations between net profit and milk traits were positive and higher than the linear traits with positive genetic correlations. The results of this study suggest that net profit has been related with the linear traits, such as body depth (BD), angularity (DF) and rear attachment width (UW) traits, and furthermore, milk traits including yield and contents rates influence positively and greatly on net profit.

• Journal of Korean Society of Forest Science
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• v.97 no.4
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• pp.398-407
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• 2008

This study is to give management state information about changes of income and net profit due to the fluctuations of chestnut prices to someone who will manage a chestnut orchard or has been managing a chestnut orchard in the market opening time. This study, hence, evaluated 133 households who manage a chestnut orchard at Jin-ju, San-cheoung in Gyeong-nam, Gu-rae in Jeon-nam, Gong-ju, Bu-yeo, and Cheoung-yang in Chung-nam. This study analyzed three scenarios by chestnut prices and by tree ages to provide informations for working expenses, production cost, income and net income to cultivators. In case of chestnut of one thousand won, the income of chestnut trees generated from nine ages and the net income is obtained from ten ages and turned into deficit from twenty-eight ages. In case of chestnut of one thousand and five hundred won, the income of chestnut trees generated from seven ages and the net income is obtained from nine ages. In case of chestnut of two thousand won, the income of chestnut trees generated from six ages and the net income is obtained seven nine ages. We calculated out labor costs and material cost and figured out management cost by tree ages. Namely two man and twenty woman are employed in harvesting 3,000 kg by hectare from ten till eighteen ages maximum harvesting seasons. Material cost is fertilizer cost, agricultural chemicals cost and seeding cost.

• Proceedings of the Korea Water Resources Association Conference
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• 2019.05a
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• pp.225-225
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• 2019

건물, 차량, 사회인프라시설과 달리 농작물이란 물리적인 시설이 아닌 농업경제 활동의 결과물로서 최종적으로 판매를 통해 수익을 창출하는 행위에서 재난으로 인하여 지장을 받게 되는 경제적 피해가 고려되어야 한다. 이를 위해 본 연구는 홍수로 인한 농작물 피해를 "생산비 매몰비용"과 "순수익 손해"를 농작물 피해추정의 척도로 하였다. 생산비 매몰비용이란 경작시작부터 피해발생까지 투입된 생산비의 회수불가에 따른 피해이며, 순수익 손해란 피해발생에 따른 기대 순수익 하락에 따른 피해를 의미한다. 다양한 작물 가운데 10종의 대표작물을 선택하고, 각 작물의 표준생산비와 표준순수익을 농업생산 및 수익과 관련한 통계자료로부터 결정하였다. 이로부터 생육경과율과 홍수 발생시기(6~9월)를 고려하여 월별 투입생산비 및 기대순수익을 결정하였다. 대상지역 내 재난에 노출된 작물정보를 정의하는 농작물 인벤토리는 농림축산식품부에서 제작된 스마트 팜 맵(농경지 전자지도)을 활용하였고, 다양한 작물이 혼재된 밭의 경우 농업면적조사 결과를 토대로 결정한 밭작물 재배현황비를 고려하였다. 홍수에 따른 취약성을 설명하는 농작물 손상함수는 영향인자는 침수심, 침수기간이며, 이를 기준으로 한 손상함수는 농림부의 농업재해피해조사요령과 일본 치수경제조사메뉴얼을 참고하여 제시하였다. 본 연구에서 제시한 농작물 피해 추정 방법은 기존 방법인 다차원 홍수피해산정법(MD-FDA)과 비교할 때 대표작물의 현실화, 국내 실정을 고려한 손상함수, 그리고 면적 기반의 원단위를 사용함으로써 실무적으로 명확하고 실용적으로 사용될 것으로 기대된다.

• KOREAN POULTRY JOURNAL
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• v.48 no.7
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• pp.122-125
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• 2016

최근 통계청에서 발표한 2015년 축산물생산비조사 결과를 살펴보면 산란계 마리 당 순수익은 계란 산지가격 하락으로 전년보다 감소하였다. 또한, 지난 5개월 동안 계란 가격은 생산비 이하를 밑도는 등 산란계산업의 큰 위기이다. 앞으로도 계란 소비 증가 요인이 없어 가격하락은 불 보듯 뻔하고 불황은 장기화될 것으로 보인다. 이런 가운데 계획적인 입추와 온습도관리로 생산성을 향상시키고 있는 자연농장(사장 장재권)은 최근 신축농장을 짓고 불황타계와 축산업 이미지 개선을 위해 다방면으로 노력하고 있다. 이번호에는 자연농장 장재권 사장을 만나 농장 운영상황에 대해 들어보았다.

• Journal of Aquaculture
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• v.19 no.1
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• pp.14-18
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• 2006

The objective of this study was to evaluate food value and profitability of black porgy (Acanthopagrus schlegeli) cultured in freshwater. In fish flesh, muscular hardness of black porgy reared in freshwater $(9210{\pm}1215g/cm^2)$ was slightly lower than those of fish in seawater $(9987{\pm}6549g/cm^2)$, but there was no significant difference. Also, there was no difference between muscular strength of fish reared in freshwater and seawater. When the flesh qualities of black porgy reared in freshwater was compared with those of fish reared in seawater through the questionnaire, there were no significant differences between fish reared in freshwater and seawater in appearance, texture, taste and flavor. For 10 months of black porgy culture in fresh water, the gross profit in culturing from juvenile (5.5 g) to adult size (100g), and from adult to marketable size (400 g) were 24,000,000 won (30.0%) and 53,870,000 won (36.9%), respectively.

• Korean Journal of Poultry Science
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• v.11 no.1
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• pp.41-47
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• 1984

The study was carried out to investigate the optimum marketing weight of broiler to maximize income from broiler rasing. The change of broiler prices between 10% above or below from present base did not affect to net income ratio to income and investment efficiency. In the case of feed price was 10% down from present base, broiler farmer's income was the highest when marketed at 76 days of age, and net income was highest when marketed at 61 days of age. In the case of feed price was 10% rise from present base, broiler farmer's income was highest when marketed at 18 days of age and net income ratios to income and investment efficiency were highest when marketed broilers as 53 and 57 days of age.

• Feed Journal
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• v.2 no.5
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• pp.106-109
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• 2004

양돈경영상 순수익을 증가시키기 위해서는 우수한 번식성적과 사료비 절감 등 경영상 여러 가지 요인이 있겠으나 무엇보다 중요한 사항은 양돈의 마지막 단계인 비육출하돈의 등급향상인 것이다. 돼지 도체등급은 A, B, C, D, E의 5개 등급으로 구분되는데 고급육에 해당되는 A와B등급 출현비율은 2003년도 현재 각각 40.4%, 29.7%로 나타나 고급육에 대한 인식은 점차 높아지고 있으나 아직 개선의 여지가 많다. 특히 도체 한 등급 가격차이는 지육 kg당 1,800원, 1두당 12,500원 이상의 차이를 보이고 있어, 연간 2,000두의 비육돼지를 출하하는 농가의 경우에는 15,000천원 상당의 소득차이가 나타날 수 있음을 주목해야 한다. 따라서 본고에서는 돼지고기의 품질에 영향을 많이 미치는 제반 요인을 분석하여 상위등급을 받기 위한 방안에 대하여 살펴보기로 한다.

• Proceedings of the Korea Information Processing Society Conference
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• 2022.11a
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• pp.943-945
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• 2022

2030 세대의 주식시장 참여율은 갈수록 늘어나는 데에 반해 증권업의 높은 진입 장벽과 부족한 정보로 손실을 보는 경우가 적지 않다. 이러한 상황에서 정보의 주체인 개인이 본인 데이터에 대한 권리를 가지고, 본인이 원하는 방식으로 데이터를 관리하는 패러다임인 '마이데이터' 서비스가 최근 떠오르고 있다. 본 논문에서는 위의 문제를 해결하기 위하여 마이데이터를 토대로 특정 주식 종목과 유사한 종목들을 먼저 선별한 후 순수익이 높게 예측되는 종목을 최종 추천하는 모델을 제안한다.